truslow



(No Model.) 2 Sheets-Sheet 1. G. W. TRUSLOW.

RAILROAD GATE. go. 341,077. Patented May 4, 18861.y Q\

l FW l 9@ @www WH@ M fm N. versus. Pmwuummrne., washington. D c.

(No Model.) 2 Sheets-Sheet 2. C. W. TRUSLOW.

RAILROAD GATE.

Patented May'fi, 1886.

-l llllnm N, PETERS. Pnnxomhoraphan wnshingmn, lz c.

lhviTED STATES PATENT OFFICE.

CHARLES IV. 'IRUSLO\V, OF NEVT YORK, N. Y.

RAILROAD-GATE.

r'rP-Q.lli-IiiiON forming part of Letters Patent No. 341,077, dated lVIay 4, 1886. Application filed January 23, 1886. Serial No. 189,464. (No model.)

To @ZZ whom 'Zt may concern.'

Be it known that I, CiIARLEs W. TRUsLow, of the city of New York, State of New York, have invented a new and useful Railroad-Gate, of which the following is a specification.

My improved gate is designed to be used for similar purposes to the gates shown in Letters Patent No. 316,747, dated April 28, 1885, to D. XV. Copeland, and No. 326,828, dated September 22, 1885, to XV. C. Baird.

In the drawings I have shown the relative position of the various operative parts for different positions of the gate.

Figurel shows the gate entirely open. Fig. 2 shows the gate entirely closed. Fig. 3 shows the gate partially open. Figs. 4 and 5 show modifications.

In these drawings, which I am now about to describe, I have shown what I at present believe to be the best form of apparatus for embodying' my invent-ion; but I do not limit myself to this form, since I am aware that many variations in forni are possible without departing from the principle of my invention.

a and b are respectively upright posts arranged on opposite sides of the passage-way high enough to admit of a sufficient passage below the level of their tops.

c is a rod nearly as long as the post b, and pivoted to the post at d'.

e is a rod pivoted at one end to the free end of rod c, as atf. The rod e is nearly equal in length to the distance between the posts a and b, less the length of c, so that when the two rods are horizontal in a line their combinedlength is suiiicient to extend nearly from one post to the other..

g is a pulley, fixed to the post b above the free end of the rod c when upright. A chain, 71., is attached to the end of rod e or rod c at f, and, passing over the pulley g, is secured to the weight i, which is suspended by it.

j isa pulley attached to the post a near its top.

k is a chain passing over the pulley j, and attached at its respective ends to the movable pulley Z and the weight/m, which weight it suspeuds.

n is a chain passing over the pulley l, and attached at its respective ends to rod e at o and to the drum p.

The size of the weights proper for prod ueing the following described mode of operation will be readily understood.

The operation is as follows: lVhile the parts are in the position shown in l, the weights will counterbalance the other parts, so as to retain them in position, and the gate will be kept open. Then it is desired to close the gate, the attendant winds the chain a on the drum p. llhe first result of so doing will be to cause the rod e to be drawn toward the post a, at the same time raising the weight 'i and moving the i'ree end of rod c forward. The next result is to cause the pulleyZ to be drawn downward, with a consequent raising of the weight m. Then about half closed the parts will have reached about the relative position shown in Fig. 3. From this position to the closed position (shown in Fig. 2) the continued winding of the chain 7s will cause the rod c to nieve forward and downward on its pivot d and the rod c to be lowered in a substantially horizontal position. Then closed, the rods c and e will occupy a position end to end, eX- tending substantially across the passage-way at a height proper to pieventpassing.

Then it is desired to open the gate, the chain n is allowed to unwind, when the weights will cause the parts to resume the positions shown in Fig. l.

I have shown as by far the preferable inode of construction the two rods c and e; but these rods might be replaced by a continuation of the chain a, and in this case it would be desirable that the chain should not be secured to the end of chain h., but that it should pass around a movable pulley secured to the end of chain 71, similarly to the movable pulley Z or the rod e may be retained and a chain substituted for the rod c. These modifications are shown in Figs. 4 and 5 of the drawings.

lVhen it is desired to operate gates on opposite sides of a railroad-track, one gate may be operated, as shown, and the rope n' from the opposite side may be brought across under the track and wound on the druln p, so that both gates are operated simultaneously from the same drum.

Some of the advantages of the above-de scribed gate may be stated as follows:

The amount of power required for operation is less than with other constructions.

The rods c and e, which I-prefer in lieu of IOO a continuous chain, when used, afford more efficient obstruction to passers than would a chain, and at the same time sag` less and can be made stronger for the saine amount of weight.

The apparatus as a whole is distinguished by lightness, cheapncss, and simplicity of construction.

For the purpose of still further supporting the part-s and preventing` the gates from sag'- ging, the post may be extended upward, as shown in post a, Fig. 1, and a pulley, y, placed at the top, over which passes a chain, 9', having one end attached at o and the other to a weight, s. The saine arrangement maya-lso be added to the post b, if desired.

I claim 1. In combination, two posts, one arranged on each side of the passage-way, the drum p,

a connection, substantially as described, eX- tending from the said drum to near the bottom of the opposite post and sustained by the chains h and 7c, which respectively depend from Ythe upper portions of said posts, and are each 

